Grain-saving device for threshing-machines.



A". D. BAKER.

GRAIN SAVING DEVICE FOR THRE S HING MACHINES.

. APPLICATION HLEU NOV. 13. [916.

1,296,908. Patented Mar. 11,1919."

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GRAIN SAVING DEVICE FOR THRESHFNG MACHINES.

APPLICATION FILED NOV-13.19l6.

Patented Mar. 11,1919.

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AiBNn'n 1 BAKE-R, or s'wANroN, OHIO, ASSIGNOR TO THE INDIANA MANUFACTURING f COMPANY, orINnIA'NAPoLIs, INDIANA, A CORPORATION or wnsr VIRGINIA.

GRAIN-SAVING DEVICE roe THRESHINGr-MAGHINES.

To all whom it may concern:

Be it known'that. I, ABNER' DLBAKER, a citizen of the United States, residing at Swanton, in the county of Fulton and State of Ohio, have invented certain new and useful Improvements in Grain-Saving Devices for ThreshingMachines, of which the following is a specification. V V My invention relates to improvements in grain saving devices for threshing machines of the character which is the subject of Letters Patent No. 1,175,019, issued March 1-1, 1916, and consists in certain details of con struction and arrangements of parts whereby I am enabled to readily apply my improvements to pneumatic stackers already constructed, and obviating the necessity of specially building such stackers to include grain saving devices disclosed in said patent, as will be hereinafter more fully explained.

In the accompanying drawings, forming a part hereof, Figure 1 is a longitudinal sectionalview through the rear end of a threshing machine and attached wind stacker, showing my invention in connection therewith; Fig. 2 is a detail sectional view as seen when looking downwardly from the dotted lines 2-2 in Fig. 1; Fig. 3 is a'transverse'sectional View looking in the direction of the arrows 3-3 in Fig. 1; Fig. 4 a detail sectional view looking in the direction of the arrows 4-4: in Fig. 2, andFigs. 5 and 6 are detail sectional views.

In said drawings, the portion marked 10 indicates a threshing machine, and 1 1 the straw rack therein. Attached to said machine is a pneumatic stacker of ordinary form, comprising the usual fanhousing, 12, having a circular intake opening as indicated, 13 the fan therein, and 14 the ejecting chute forming part of said fan housing, the hopper 15 which communicates with the latter being shown in section.

In applying my improvement to a stacker in the field I cut away a portion of the wall, 12, and rim, 16, of the fan casing, and secure thereover a coupling or air receiver, 17,

preferably composed of two sections 18, 19,

(Fig. 2), the former being placed over the rim and the latter against the wall, thus forming a tubular connection for a blast pipe, 20, which leads therefrom to an air distributer, 21, adapted to discharge an air blast across the grain trap, 22. Said d1stributer preferably comprises two seml-cy- Specification of Letters Patent.

Patented Mar. 111', 1919.

Application filed November 1 3, 1916. Serial No. 136,963.

lindricalmembers, 24, 25, suitably bolted together, as clearly indicated in Fig. 3, the outer member 2 1 terminating in a curved flange, 26, extending above and slightly over flange, 27, on member .25, thus constituting an air nozzle. The end, 28, of this distributer, aswill be understood, is closed, each of the members 2 1and 25 being flanged, so that when assembled 7 an imper'forate wall is formed by the meeting of thetwo parts. While I have illustrated and described my improved air distributer as composed of two members, it will be understood, of course, that this may. be a single structure made from sheet metal and a nozzle as 26 formed in any desired manner, but in practice I have found that a cast metal distributer arranged iritle manner indicated may be readily app 1e 7 On the inside of the fan casing I provide a perforated air separator, 30, which is held in position against the rim 16 together with the coupling section 18 by bolts, 31, which pass through said coupling, the rim 16 and a flange, 32, on said'separator. On the side of said separator opposite to said flange 32 I provide aflange, 33, the edge of which .fits snugly against the inside of wall 12, so

that said perforated separator will be spaced therefrom to form an air chamber, 34:. The

cape of air and fine material therefrom, as r it is carried around by the action of thefan blades.

Beneath the grain trap 22 I provide an' endless carrier, 40, inclosed in a casing, 41, which leads to the tailings auger, 42, of the threshing machine, said carrier being operated by a suitable sprocket chain arrange ment, 43, or in any other desired manner.

In operation the straw, etc., discharging from the rack 11 and other parts of the threshing machine into the stacker hopper 15, is withdrawn by the fan 13 and ejected through the chute 14 onto the strawstack as usual. The rotation of said fan compresses the air, as will be readily understood, a portion of which passes through the per forated separator 30 and through the coupling or receiver 17 into pipe 20, and fills up the air chamber 21, escaping therefrom 85 upper end, 35, of said separator is imperfo-' through the nozzle formed by the flange 26 a and discharges across the grain trap 22, thus v'v'i'nnovving material passing thereover so that loose grains and unthreshed heads become separated from the strawand chafi' and fall in said grain trap from Which such 7 grain passes 'into'the conveyer tOand is car ried thereby and discharged into the tailings auger 42, in a Well known manner. By providing an'air distributer of the formshovvn, V

the same maybe securely placed in connectiongrw'ith the' trap 22, and, as it becomes filled Witlrair undervpressure conveyed by vpipe 20, I obtain an equalfand eflicient distribution through the nozzle'26' to'propel and winnow' the material passingfrom the receptacle1 5 acro'ss -the trap 22, so that loose and unthreshed grains will be caught therein While-the straw mass-passes therea over into the fan.

I claim as my invent on: 7

1. In a grain saving device for threshing machines, a fan casing, a 7 fan therein, 7 a gram trap communicating with said fan cas-' said distributer, and means for removably attaching said pipe to said fan casing;

2.- In a grain saving devlce forothreshlng machines 'a fan casing having anopemng 1n "its periphery, an air receiver positioned over said ';opening, a blast pipe detachably secured to said receiver, and an air distributer detachablysecured to the opposite" end of said'pipe for receiving and discharging air conveyed-from said fan easing into said distributer, V v r 3. in: a grainsaving device for threshing machine a fan casing having an opening in its, periphery, an air separator comprising a flanged-perforated member detachably p0- sition'ed oversaid opening, an air distributer Copies of thispatent may be obtained for five cents each, by addressing the Washington, D. C.

comprising a tubular body and a discharg to said distributer for receiving and'discharging airfrom'said tan easing into said dlstributer, said blast pipe being removably ing over said opening, and a'n" air distributer V communicatlng With said blast pipe and de tachably secured thereto, f said di'stributer having atubular member closed at one end and niea'nslarranged' longitudinally "of said member for distributing'air, V V v V g Y 5.- In a grain saving device adapted for ing nozzlearranged longitudinally thereof, o and a blast pipe leading from said opening application to" a threshing machine" already constructed, the combination of va rfan' cas- 111g havlngan opening 1n lts periphery, a

separator Within 's'aidcasing adjacent said opening, a blast pipe detachably secured to said casing, and aniair' distributer detach ably secured'to said pipe comprising" a cylindrical body closed at its outer end and opened longitudinally along itsside, and having means'for distributing air discharging through said opening.

6. Ina threshing rnachine, the combination of a fan casing having an -,0'pening therein, a blast pipedetach'ably secured over said 0pening,and a cylindrically shaped air distributor communicating with 'the outer end of said pipe, saidQdistributer having means arranged longitudinally therein for controlling and distributing air discharging through said pipefinto'said cylinder.

In testimony whereof- I affix my signature in tl'ie'presence of tvvo Witnesses.

, -ABNER DEBAKERL VVitnes'ses:

C. W. GRISMAN, J. A. WALSH.

c'mmissi'oner of Patents, 

